Gear Clock-Physics and Machines Activity for kids
, ,

Gear Clock – Machines & Gears Activity for kids

GEAR CLOCK is a Fun Science Activity fr Kids to build a clock that is made out of gears and Magnets.

Let’s build this clock and find out what’s so interesting about these gears and how they work together in turn to make a clock work!


Gear Clock-Physics and Machines Activity for kids 1

Safety First! 
Adult Supervision Required. Wear safety goggles where ever required

Materials and tools required for the Experiment

Material required

Material required

Materials In the Gear Clock Kit

  • Gears
  • Popsicles
  • Electric tape
  • Magnets
  • Pipe cleaners

 Youtube Video for the Experiment

Images & Step by Step for Instructions for Experiment

Gear clock 1

Step 1:  Cut 1 cm from each ends in three popsicles and punch holes in the center

Step 2: Punch holes in the center of two popsicles. 

Gear clock 2

Step 3: Wrap  the pipe cleaner around the smallest and the largest gears..

Gear clock 3Step 4: Place the gear clock sheet on any metal surface using magnets.

Step 5: Through the centres of the minute and hour dials, make markings using an OTP.

Step 6: Remove the sheet and paste two popsicles aligning their holes with the marks using electric tape.Now put the clock sheet back such that the holes in sheet and popsicles coincide.

Gear clock 4Step 7: The minute hand dial will be gear one while the hour dial will be Gear five.

Step 8: Make 5 stacks of 3 cylindrical magnets each and inset them through each gear.Affix the Gear one over minute dial (Left most)such that it passes through the popsicle’s hole.

Step 9: Repeat the same with the Gear Five on Hour Dial.(right most).


Gear clock 5

Step 10: Insert one popsicle each through the magnets(shaft) of the 3 remaining Gears(2,3,4).

Gear clock 6Step 11: Place and drag the Gear Two such that its 50 teeth circle is facing up(24 teeth wont be visible) and is driven by Gear One.

Step 12: Take the Gear Three with 20 teeth circle facing up. Drag it such that Gear two – 24 teeth circle drives its 50 teeth circle.

Step 13: Now take Gear Four and place it such that it gets driven by 20 teeth circle and drives the already fixed Gear five.Move the Gear One to see the Gear Five move.

Step 14: Adjust the 3 middle gears(2,3,4) if required.Affix the popsicles of remaining 3 gears using tape.

Working Principle of Gear Clock :

A gear is a toothed wheel. Gears are used in bicycles, motorcycles, cars and many heavy machines.

In this experiment, we use gears to make a clock work. When the minute hand completes one round, the hour hand moves one step. The rotation of the gears depends on the number of gears that work together. If there is even number of gears, the first and the last gears move in the opposite direction but if it’s odd then the first and last gears move in the same direction.

For example, if there are 4 gears and the first one is moving clockwise then the second gear will move anti clockwise, the thirds one clockwise and the fourth one anti clockwise.

Other Recommended Experiments for Kids ( Click to Read)